title: The electron--phonon coupling at the Mo(112) surface.
abstract: We investigated the electron-phonon coupling (EPC), in the vicinity of the Fermi level, for the surface-weighted states of Mo(112) from high resolution angle-resolved photoemission data taken parallel to the surface corrugation (i.e. [Formula: see text]). The surface-weighted bandwidth may be discussed in terms of electron-electron interactions, electron impurity scattering and electron-phonon coupling and exhibits a mass enhancement factor λ = 0.42, within the Debye model, determined from the experimentally derived self-energy. Gold overlayers suppress the mass enhancement of the Mo(112) surface-weighted band crossing the Fermi level at 0.54 Å(-1).
authors.affiliation: Department of Physics and Astronomy and the Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE 68588-0111, USA.
authors.forename: Ning
authors.initials: N
authors.lastname: Wu
authors.forename: Ya B
authors.initials: YB
authors.lastname: Losovyj
authors.forename: Keisuke
authors.initials: K
authors.lastname: Fukutani
authors.forename: P A
authors.initials: PA
authors.lastname: Dowben